Despite Julie London's divorce from Jack Webb, she immediately accepted the role of head nurse Dixie McCall, and she asked her second husband Bobby Troup to play Dr. Joe Early.
During his recurring role on Emergency! (1972), the character Officer Vince played by Vince Howard, rotated from being a member of the Los Angeles County Sheriffs Department to a generic police department after Jack Webb had an argument with the LASD.
During his recurring role, the character Officer Vince (played by Vince Howard) rotated from being a member of the Los Angeles Police Department and the Los Angeles Sheriffs Department.
Because the exterior shots of the station were from an active working LAFD station(127), Truck-127 was parked off to the side of the station during filming, and during several of the response clips you can see parts of the actual truck to the right of the building.